package xiaohu.day1.HJ12;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            String str = in.nextLine();
            StringBuilder stringBuilder = new StringBuilder(str);
            System.out.println(stringBuilder.reverse());
        }
    }
}
